Culvert-pipe.



' The invention consists generally in various, constructionsand combinatlons all as 15 together.

- The ends of thepipe. sections are UNITED sTATEs PATENTOFFTCE.

CARL O. WOLD, MINNEAPOLIS, MINNESOTA. i I

cULvEnT-HPE.

l No. 912,638.y

To'all whom it concern:

Be it known that I, CARL O, IVOLD, of Minneapolis, Hennepin county, Minnesota, lmvejinvented A,certain new and useful .Im-

particularly sections "l1aving annular cor.- rugations formed therein, the pipe being designed for culvertv and similar work.

hereinafter. described, and pointed out in the claims. y

In the accompanyingvdrawings forming particularly .part of this specification, Figure l, is a side view partially in section .of the abutting ends of two ,pipeV sections showing my improved means or securingthem together, Fig. 2, is a sideview of the band illustrat= -ing theme'ans for securing its ends together, F1g. 3, isa view showmg the band anda modiiied means for securing its ends In the drawing, 2 and Srepresent `abutplates having corrugations formed therein and their edges riveted together to form the larger sizes of pipe. In the smallersizes a single plate is sufficient. The number of plates used in a section will of course depend upon the diameter of the pipe. Corru ations indicated by reference numeral' extend around the pipe and greatly strengthen it to resist a crushingstrain.- brought together as vindicated f.. in Fig. 1,"" and a band 5 having corrugations 6 formed.- therein,

-is provided to inclose the` ends ofthe sec-- tions and overlap the `outer corrugaiirl-g'` therein; that is,theband 5 is of suiiicire width to'bridge` the joint between the sections and embrace the Hrst lcorrugation in the end of each section. The edges of the band extend intoV the depression formed `between the first corrugation and the second one, and when the ends 4of the band arev drawn together, and locked, the sections will be securelyheld a ainst separation and the joint will also be raced and strengthened.'

The ends of the band are 4turned outwardly I forming lips 7 through which bolts 8 pass for drawing said ends together 4and clamp-A ing the band securely around the pipe sec- Speccatonofietters Patent. i 'i Application filed October 22, 1908. Serial N01 459,057.

' together.

lfeirpeditiously performed. It

Patented nel. 16, 1909.

v:tions: I havevfound this tobe an extremelyl simple and eiiicient means'for connecting Athe ends of ,the pipe sections. No telescopin'g is required.- Consequent loss in the length ,of the' vpipe sections is avoided and withfI the band ofsuilicient width to cover a Acorrugation--on veach section, the joint will be rigidly held and there will be no danger of thefsect-ionsv pulling apart.

In Fig. 2, I have-shown a modification bands together, adapted particularly for the heavier4 sizesof 'Y pipe and consisting of brackets 9, secured to the ends of the band having holes into whichthe connecting bolts are inserted and the ends of the band drawn The`pand which I on from one endo 1 a pipe section or is formed with the samediameter as said section, so that when it isplaced "on the outsidey in the manner` of securing the ends of the Y refer to'e'mploy is cut of .the pipe sections, its ends will'be sepa- I l rated a suiiicient distance .toi allow the bolts a to draw the said the joint. Y l In some instances,

ends together and clamp.A

the pipesections may be y'cut or the corrugations eformetltherein so that the annular depressions will be formed at'the ends of they sections Ainstead of the ribs of the corrugations. .In that case, the encircling band would have-its depressions correspondingly yformed'A so that l I they `wouldnt into or nestl with the grooves lor depressions in the ends ofthe sections. I have found this to be an economical methodof, connecting the pipe sections. No rivet'-v i ing is required and it is merely necessary to adjust the pipe sections end .to end,.inclo`se them withthe band and draw the ends of the band together. The work of uniting the sections is then completedand is "easily and i also to b e noted, that there are no special bs or corru- -gations formed in the ends of the pipe nor are they flared b any special process. The sections are ma e up in the Iordinary way of the corrugated plates and their abutting ends united Vby the embracing clamp plate or band..

I claim as my invention i l. The combination, with two pipe sections, placed end to end but 'without lapping by one another, each section having annular corrugations formed therein, extending at intervals from end to end of the sections, of a circular band, arranged to inclose the joint annular corrugations ormed therein, a; y

y placed end to end, eachsection at the 'abutting ends of said-sections. and.`

' -are brought-together, corresponding suhstantially to the vdiameter of 'said sections,

and means-for. drawing the ends of said band together tio clamp it on the joint..

2.' A culvert composed of p1 e sections up of plates riveted to ether, and having ing made- 'siaes band'havin corrugations extending lengthJ Wise thereot on each side of its longitudlnal center, said corrugations over-lapping and embracing respectively Vthe corrugations in the ends of said pipe sections and saidvband having its ends turned outwardly frming lips thereon and means passingthrough said lips fdr drawing the endsofA said band together, substantlally as described.

In Witness whereof, I have hereunto set my handthis 13th day of October 1908.

, CARL O. WOLD.

Witnesses: i

RICHARD PAUL,

"Jg A. BYINGTON.' 

